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arXiv · 1106.6000

The $Δ(1232)$ axial charge and form factors from lattice QCD

C. Alexandrou·E. B. Gregory·T. Korzec·G. Koutsou·J. W. Negele·T. Sato·A. Tsapalis
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Abstract

We present the first calculation on the $Δ$ axial-vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined. A combined chiral fit is performed to the nucleon axial charge, N to $Δ$ axial transition coupling constant and $Δ$ axial charge.

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C. Alexandrou, E. B. Gregory, T. Korzec, G. Koutsou, J. W. Negele, T. Sato, A. Tsapalis. 2011-06-29. The $Δ(1232)$ axial charge and form factors from lattice QCD. https://doi.org/10.1103/physrevlett.107.141601

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